preposterously

adverb

pre·​pos·​ter·​ous·​ly

1

: nonsensically, absurdly

a poor but almost preposterously happy government clerk

—Time

2

: in an inverted or unnatural order or position : with the hind part foremost

tumbled to earth and stayed a mighty while preposterously

—George Chapman

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now